document.write( "Question 1149728: Find the area between Z1= 2 and Z2=2.5 . \n" ); document.write( "
Algebra.Com's Answer #771184 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "On TI-84,\r\n" );
document.write( "2ND VARS 2\r\n" );
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document.write( "           normalcdf\r\n" );
document.write( "lower:2\r\n" );
document.write( "upper:2.5\r\n" );
document.write( "m:0\r\n" );
document.write( "s:1\r\n" );
document.write( "Paste\r\n" );
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document.write( "scroll down to \"Paste\", press ENTER\r\n" );
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document.write( "Screen reads\r\n" );
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document.write( "normalcdf(2,2.5,0,1)\r\n" );
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document.write( "press ENTER\r\n" );
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document.write( "Answer: 0.0165403822, round to 0.0165\r\n" );
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document.write( "If you use a table \r\n" );
document.write( "Look up 2.5 read 0.4938 or 0.9938, (depending on which kind of table).\r\n" );
document.write( "Look up 2.0 read 0.4772 or 0.9772,\r\n" );
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document.write( "Subtract and get .0166.  There is a difference in the 4th decimal place\r\n" );
document.write( "because the calculator is more accurate than tables.\r\n" );
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document.write( "Edwin
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